Ready-to-use ELISA kits are available for the detection of HCLS1 associated X-1, an alias of the protein, HCLS1 associated protein X-1. The official gene symbol is HAX1. The protein, with a mass of 31.6 kDa and length of 279 residues, is reported to be cytoplasmic, nuclear, mitochondrial and membrane-associated. It is a member of the HAX1 family and may be known by other names, including: HCLSBP1, HSP1BP-1, HS1-associating protein X-1, HS1 binding protein, HCLS1 (and PKD2) associated protein, and HAX-1, and SCN3.